Parse object literal in binding attributes or styles

[Hanks10100]

Source:

<div :style="{ fontSize: 15, color: item.color }"></div>

Should be compiled to:

{
  style: {
    fontSize: 15,
    color: { '@binding':  'item.color' }
  }
}

Current is:

{
  style: {
    '@binding':  '{ fontSize: 15, color: item.color }'
  }
}

[yyx990803]

We can use acorn to parse and transform the expression.